Volume 7, 1999Third International Workshop on Vortex Flows and Related Numerical Methods
|Page(s)||378 - 386|
|Published online||15 August 2002|
Compressible effects on a temporal direct numerical simulation
Institut de Mécanique des Fluides de Toulouse Avenue du Professeur Camille Soula 31400 Toulouse
Direct numerical simulation of a temporal compressible mixing layer has been performed through the mixing layer transition at convective Mach number 0.4 with massively parallel computer. Finite volume method has been used to solve the full time-dependent, compressible Navier-Stokes equations without turbulence models. Numerical simulation initialized by the most amplified linear instability waves is then presented. 1923 mesh size is used to describe full scales. Roll-up and pairing process have developed and have been described, showing the highly two dimensional feature of the mixing layer. The influence of the phase between the two- and three-dimensional initially pertubated waves has been revealed.
© EDP Sciences, ESAIM, 1999
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